MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a331be0da746439c8993d578891c675694d46a79c1a2ee72f61d5c7c8b3f2b57. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Mirai


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a331be0da746439c8993d578891c675694d46a79c1a2ee72f61d5c7c8b3f2b57
SHA3-384 hash: c0a6b98eef88b916f7774f6a9d82603985659fe6a907305ec902098a0f7ac9371423e0432283f81e032b272b91601cc3
SHA1 hash: 8fdb174ef2ecb4dbf1577d7ce4a55fe1c427e975
MD5 hash: 3228a6b0b382fb508abc6aa717dc7809
humanhash: carbon-beer-paris-alaska
File name:S3o.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:47'596 bytes
First seen:2025-11-19 23:27:56 UTC
Last seen:2025-11-20 10:56:18 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:5ApV3/HxLw6uJqr8ynguJ8io58Nt7wE057qGxii3TvfLHyewlw4VKThIM5c7WTjo:5URL7uSngC4u657Jn3zTZwO0KTyMuWTM
TLSH T17723F1A75D3FE268C9A358339B264DD0EE495E76C8428ADB0C45F3FECEB79109711A40
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :47'596 bytes
File size (de-compressed) :109'968 bytes
Format:linux/amd64
Unpacked file: a11a2a21c29c4f4c51efbf3e9666e92ba4c4e29473caf28e002046465926d2b9

Intelligence

File Origin
# of uploads :
2
# of downloads :
40
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Opens a port
Sends data to a server
Connection attempt
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/691e52ac5bbff1003f0af774/reports/980f1b42-9f72-4c6f-b712-5dbfad19835e/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
46
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a331be0da746439c8993d578891c675694d46a79c1a2ee72f61d5c7c8b3f2b57
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-11-19T17:57:00Z UTC
Last seen:
2025-11-20T10:18:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/a331be0da746439c8993d578891c675694d46a79c1a2ee72f61d5c7c8b3f2b57/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/22e9c529-96e5-4734-8d92-3527361b3967
Behavior Graph:
Download SVG
%3 guuid=d654e7eb-1900-0000-6212-af8779070000 pid=1913 /usr/bin/sudo guuid=dbafdbee-1900-0000-6212-af877c070000 pid=1916 /tmp/sample.bin mprotect-exec net guuid=d654e7eb-1900-0000-6212-af8779070000 pid=1913->guuid=dbafdbee-1900-0000-6212-af877c070000 pid=1916 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=dbafdbee-1900-0000-6212-af877c070000 pid=1916->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=ba6e67ef-1900-0000-6212-af8780070000 pid=1920 /tmp/sample.bin guuid=dbafdbee-1900-0000-6212-af877c070000 pid=1916->guuid=ba6e67ef-1900-0000-6212-af8780070000 pid=1920 clone guuid=23a3d919-1b00-0000-6212-af8784090000 pid=2436 /tmp/sample.bin guuid=dbafdbee-1900-0000-6212-af877c070000 pid=1916->guuid=23a3d919-1b00-0000-6212-af8784090000 pid=2436 clone guuid=f6badd19-1b00-0000-6212-af8785090000 pid=2437 /tmp/sample.bin net send-data zombie guuid=dbafdbee-1900-0000-6212-af877c070000 pid=1916->guuid=f6badd19-1b00-0000-6212-af8785090000 pid=2437 clone guuid=1bef6cef-1900-0000-6212-af8781070000 pid=1921 /tmp/sample.bin guuid=ba6e67ef-1900-0000-6212-af8780070000 pid=1920->guuid=1bef6cef-1900-0000-6212-af8781070000 pid=1921 clone guuid=43a572ef-1900-0000-6212-af8782070000 pid=1922 /tmp/sample.bin net send-data zombie guuid=ba6e67ef-1900-0000-6212-af8780070000 pid=1920->guuid=43a572ef-1900-0000-6212-af8782070000 pid=1922 clone guuid=43a572ef-1900-0000-6212-af8782070000 pid=1922->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 555B 6212eaac-f1d9-5754-86f6-5d00d3f03015 41.216.189.110:80 guuid=43a572ef-1900-0000-6212-af8782070000 pid=1922->6212eaac-f1d9-5754-86f6-5d00d3f03015 send: 22B guuid=f6badd19-1b00-0000-6212-af8785090000 pid=2437->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 555B guuid=f6badd19-1b00-0000-6212-af8785090000 pid=2437->6212eaac-f1d9-5754-86f6-5d00d3f03015 send: 22B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7491b6b5-5a0d-46ea-8ff0-d0300f764feb
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1817374
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1817374 Sample: S3o.x86_64.elf Startdate: 20/11/2025 Architecture: LINUX Score: 72 22 vmr3b.bounceme.net. [malformed] 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Yara detected Mirai 2->32 34 Sample is packed with UPX 2->34 8 S3o.x86_64.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 36 Sends malformed DNS queries 22->36 process4 process5 12 S3o.x86_64.elf 8->12         started        14 S3o.x86_64.elf 8->14         started        16 S3o.x86_64.elf 8->16         started        process6 18 S3o.x86_64.elf 12->18         started        20 S3o.x86_64.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a331be0da746439c8993d578891c675694d46a79c1a2ee72f61d5c7c8b3f2b57
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a331be0da746439c8993d578891c675694d46a79c1a2ee72f61d5c7c8b3f2b57/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-19 23:28:33 UTC
File Type:
ELF64 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=umy34dnhizbzzcmt2v4ishdhk2kni2tzygro44xwdvohzcz7fnlq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251119-3gahva1qbl/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9fee2b08-7aea-4f6a-b4ed-ec466ae4035f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/a331be0da746439c8993d578891c675694d46a79c1a2ee72f61d5c7c8b3f2b57

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf a331be0da746439c8993d578891c675694d46a79c1a2ee72f61d5c7c8b3f2b57

(this sample)

Mirai

elf a11a2a21c29c4f4c51efbf3e9666e92ba4c4e29473caf28e002046465926d2b9

  
URLhaus
https://urlhaus.abuse.ch/url/3712159/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 a11a2a21c29c4f4c51efbf3e9666e92ba4c4e29473caf28e002046465926d2b9
  
Dropping
MD5 c3fe453aaa339a993665cc7f3ca4e451
  
URLhaus
https://urlhaus.abuse.ch/url/3712502/
  
URLhaus
https://urlhaus.abuse.ch/url/3712515/
  
URLhaus
https://urlhaus.abuse.ch/url/3712531/

Comments